账号登录成功，您需要创建应用才可正式调用AI能力。应用是您调用API服务的基本操作单元，您可以基于应用创建成功后获取的API Key及Secret Key，进行接口调用操作，及相关配置。

第一步：去百度智能云注册账号登录：链接：百度智能云-登录 (baidu.com)

第二步：找到右侧顶部蓝色三条杠点击-->产品服务-->人工智能-->人脸识别

第三步：按照首页概括操作

关于创建应用教程：

 第四步创建好后保留以下三个字段

废话不多说直接上代码

1.创建一个spring boot项目

2.导入maven依赖

    com.baidu.aip    java-sdk    4.16.7

3.创建数据库，如下图所示

4.配置yml

baidu:  appId: 刚刚创建号应用保存的appId  key: 刚刚创建号应用保存的key  secret: 刚刚创建号应用保存的secret

 如图所示：

 5.

import com.baidu.aip.face.AipFace;import org.springframework.beans.factory.annotation.Value;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configurationpublic class BaiduConfig {    @Value("${baidu.appId}")    private String appId;    @Value("${baidu.key}")    private String key;    @Value("${baidu.secret}")    private String secret;    @Bean    public AipFace aipFace(){ return new AipFace(appId,key,secret);    }}

6.

import lombok.AllArgsConstructor;import lombok.Builder;import lombok.Data;import lombok.NoArgsConstructor;@Data@NoArgsConstructor@AllArgsConstructor@Builderpublic class Users {  private Integer id;  private String userName;  private String userPhoto;}----------------------------------都在代码块中了哈------------------------------------------第七步：import com.baidu.aip.face.AipFace;import com.face.config.BaiduConfig;import com.face.dao.UsersMapper;import com.face.pojo.Users;import org.json.JSONObject;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.util.StringUtils;import org.springframework.web.bind.annotation.CrossOrigin;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import sun.misc.BASE64Decoder;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStream;import java.util.HashMap;@RestController@CrossOriginpublic class FaceController {    /*上传路径*/    private String filePath="D:\\NgProject\\电子摘挂牌\\face\\doc";    @Autowired    private BaiduConfig baiduConfig;    /*数据库*/    @Autowired    private UsersMapper usersMapper;    @RequestMapping(value = "register",method = RequestMethod.POST)    public String register(String userName,String faceBase) throws IOException { if(!StringUtils.isEmpty(userName) && !StringUtils.isEmpty(faceBase)) {     // 文件上传的地址     System.out.println(filePath);     // 图片名称     String fileName = userName + System.currentTimeMillis() + ".png";     System.out.println(filePath + "\\" + fileName);     File file = new File(filePath + "\\" + fileName);     // 往数据库里插入一条用户数据     Users user = new Users();     user.setUserName(userName);     user.setUserPhoto(filePath + "\\" + fileName);     Users exitUser = usersMapper.selectUserByName(user);     if(exitUser != null) {  return "2";     }     usersMapper.addUsers(user);     // 保存上传摄像头捕获的图片     saveLocalImage(faceBase, file);     // 向百度云人脸库插入一张人脸     faceSetAddUser(baiduConfig.aipFace(),faceBase,userName); } return "1";    }    public boolean saveLocalImage(String imgStr, File file) { // 图像数据为空 if (imgStr == null) {     return false; }else {     BASE64Decoder decoder = new BASE64Decoder();     try {  // Base64解码  byte[] bytes = decoder.decodeBuffer(imgStr);  for (int i = 0; i < bytes.length; ++i) {      if (bytes[i] < 0) {   bytes[i] += 256;      }  }  // 生成jpeg图片  if(!file.exists()) {      file.getParentFile().mkdir();      OutputStream out = new FileOutputStream(file);      out.write(bytes);      out.flush();      out.close();      return true;  }     } catch (Exception e) {  e.printStackTrace();  return false;     } } return false;    }    public boolean faceSetAddUser(AipFace client, String faceBase, String username) { // 参数为数据库中注册的人脸 HashMap options = new HashMap(); options.put("user_info", "user's info"); JSONObject res = client.addUser(faceBase, "BASE64", "user_01", username, options); return true;    }    @RequestMapping(value = "login",method = RequestMethod.POST)    public String login(String faceBase) { String faceData = faceBase; // 进行人像数据对比 Double num = checkUser(faceData,baiduConfig.aipFace()); if( num > 80) {     return "1"; }else {     return "2"; }    }    public Double checkUser(String imgBash64,AipFace client) { // 传入可选参数调用接口 HashMap options = new HashMap(); JSONObject res = client.search(imgBash64, "BASE64", "user_01", options); JSONObject user = (JSONObject) res.getJSONObject("result").getJSONArray("user_list").get(0); Double score = (Double) user.get("score"); return score;    }}----------------------------------------------------------------------------------------第八步：import com.face.pojo.Users;import org.apache.ibatis.annotations.Insert;import org.apache.ibatis.annotations.Mapper;import org.apache.ibatis.annotations.Select;@Mapperpublic interface UsersMapper {    @Insert("insert into users values (#{id},#{userName},#{userPhoto})")    Integer addUsers(Users users);    @Select("select*from users where user_name=#{userName}")    Users selectUserByName(Users users);}第九步：注册前端页面    /**解决浏览器兼容性问题**/  *{margin: 0;padding: 0;}  html,body{width: 100%;height: 100%;}/**/  /*body{background: url(ac.jpg) no-repeat center;}*/  h1{color: #fff;text-align: center;line-height: 80px;}  .media{width: 534px;height: 400px;margin: 40px auto 0;    }  #register{width: 200px;height:50px;background-color: #2196f3; margin-left: 640px;  text-align: center;line-height: 50px;color: #fff;border-radius: 10px;}  #canvas{display: none;}  /*#shuru{width: 200px;height:50px;background-color: #2196f3; margin: 20px auto 0;}*/   #shuru{width: 200px;height:30px; margin: 0 auto;}  
注册
 
 用户名： 
 
     
 确定注册   /**调用摄像头，获取媒体视频流**/ var video = document.getElementById('video'); //返回画布二维画图环境 var userContext = canvas.getContext("2d"); var getUserMedia =  //浏览器兼容,表示在火狐、Google、IE等浏览器都可正常支持  (navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia)  //getUserMedia.call(要调用的对象，约束条件，调用成功的函数，调用失败的函数)  getUserMedia.call(navigator,{video: true,audio: false},function(localMediaStream){   //获取摄像头捕捉的视频流   video.srcObject=localMediaStream;  },function(e){   console.log("获取摄像头失败！！")  }); //点击按钮注册事件  var btn = document.getElementById("register"); btn.onclick = function () {  var username = $("#username").val();  alert($("#username").val());   if(username != null){    //点击按钮时拿到登陆者面部信息      userContext.drawImage(video,0,0,450,300);      var userImgSrc = document.getElementById("canvas").toDataURL("img/png" alt="百度云人脸识别");      //拿到bash64格式的照片信息      var faceBase = userImgSrc.split(",")[1];      //ajax异步请求      $.ajax({url: "http://127.0.0.1:8080/register",type: "post",data: {"faceBase": faceBase, "userName": username},success: function(result){ if(result === '1'){  alert("注册成功！！，点击确认跳转至登录页面");  window.location.href="fac2.html"; }else if(result === '2'){  alert("您已经注册过啦！！"); }else{  alert("系统错误！！"); }}      })   }else{    alert("用户名不能为空");   }} ----------------------------------------------------------------------------------------第十步：登录前端页面             *{margin: 0;padding: 0;} html,body{width: 100%;height: 100%;}/**/ h1{text-align: center;line-height: 80px;} .media{width: 450px;height: 300px;line-height: 300px;margin: 40px auto;} .btn{width: 250px;height:50px; line-height:50px; margin: 20px auto; text-align: center;} #login{width: 200px;height:50px;background-color: skyblue;text-align: center;line-height: 50px;color: #fff;} #canvas{display: none;}    
登录
        
登录按钮
    /**调用摄像头，获取媒体视频流**/    var video = document.getElementById('video');    //返回画布二维画图环境    var userContext = canvas.getContext("2d");    var getUserMedia = //浏览器兼容,表示在火狐、Google、IE等浏览器都可正常支持 (navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia)    //getUserMedia.call(要调用的对象，约束条件，调用成功的函数，调用失败的函数)    getUserMedia.call(navigator,{video: true,audio: false},function(localMediaStream){ //获取摄像头捕捉的视频流 video.srcObject=localMediaStream;    },function(e){ console.log("获取摄像头失败！！")    });    //点击按钮登录事件    var btn = document.getElementById("login");    btn.onclick = function () { //点击按钮时拿到登陆者面部信息 userContext.drawImage(video,0,0,450,300); var userImgSrc = document.getElementById("canvas").toDataURL("img/png" alt="百度云人脸识别"); //拿到bash64格式的照片信息 var faceBase = userImgSrc.split(",")[1]; //ajax异步请求 $.ajax({     url: "http://127.0.0.1:8080/login",     type: "post",     data: {"faceBase": faceBase},     success: function(result){  if(result==='1'){      alert("登录成功！！")      //跳转至登录页面      // window.location.href="toSuccess";  }else{      alert("人脸识别失败！！");      //跳转至登录失败页面      // window.location.href="toErro";  }     } })    }

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